Guernsey Weather & Climate: Best Time to Visit

The weather in Guernsey changes moderately throughout the year, offering enough variation to appreciate each season. Typically, average maximum daytime temperatures range from a pleasant 19°C (66°F) in August to a chilly 11°C (52°F) in the coolest month, February.

Nights vary from 16°C (61°F) in August to around 7°C (45°F) during the colder months.

Check out our detailed temperature page for more information.

Temperature ranges by month

Generally, Guernsey has a moderate amount of precipitation, averaging 964 mm (38 in) of rainfall annually. The climate in Guernsey shows significant variation throughout the year. Expect high rainfall in December, the wettest month, with an average of 131 mm (5.2 in) of precipitation over 19 rainy days.

In contrast, the driest month July offers drier and sunnier days, with around 41 mm (1.6 in) of rainfall over 10 rainy days. For more details, please visit our Guernsey Precipitation page.

The mean monthly precipitation over the year, including rain, hail, and snow

The average number of days each month with precipitation

For those who appreciate different seasons, Guernsey serves as an ideal destination. Expect longer, more sun-filled days in July with an average of 8.4 hours of sunshine daily, and embrace the darker days in December, offering only 2.0 hours of daily sunlight.

Visit our detailed sunshine hours page for more information.

Monthly hours of sunshine

Daily hours of sunshine

Daily percentage of sunshine